165 lines
4.8 KiB
C#
165 lines
4.8 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Security.Cryptography.X509Certificates;
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using System.Text;
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namespace StgSharp.Math
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{
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[StructLayout(LayoutKind.Explicit)]
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public struct Matrix3x3:IEquatable<Matrix3x3>
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{
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[FieldOffset(0)]
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public Vec3D row1;
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[FieldOffset(12)]
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public Vec3D row2;
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[FieldOffset(24)]
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public Vec3D row3;
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public Matrix3x3(Vec3D r0,Vec3D r1,Vec3D r2)
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{
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row1 = r0;
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row2 = r1;
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row3 = r2;
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}
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public Matrix3x3(
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float a11,float a12,float a13,
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float a21,float a22,float a23,
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float a31,float a32,float a33
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)
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{
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row1 = new Vec3D(a11, a12, a13);
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row2 = new Vec3D(a21, a22, a23);
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row3 = new Vec3D(a31, a32, a33);
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}
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public override int GetHashCode()
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{
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return HashCode.Combine(row1,row2,row3);
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}
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bool IEquatable<Matrix3x3>.Equals(Matrix3x3 other)
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{
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if (this.GetHashCode()!=other.GetHashCode())
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{
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return false;
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}
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else
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{
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return
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this.row1 == other.row1
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&& this.row2 == other.row2
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&& this.row3 == other.row3;
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}
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}
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public override bool Equals(object obj)
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{
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if (obj == null)
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{
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return false;
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}
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else if (obj.GetType() != typeof(Matrix3x3))
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{
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return false;
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}
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else
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{
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return this.Equals((Matrix3x3)obj);
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}
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}
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public override string ToString()
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{
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return $"{row1}\n{row2}\n{row3}";
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}
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public static bool operator ==(Matrix3x3 array1, Matrix3x3 array2)
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{
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return array1.Equals(array2);
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}
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public static bool operator !=(Matrix3x3 array1, Matrix3x3 array2)
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{
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return !array1.Equals(array2);
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}
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public static Matrix3x3 operator +(Matrix3x3 array1, Matrix3x3 array2)
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{
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return new Matrix3x3(
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array1.row1.X + array2.row1.X,
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array1.row1.Y + array2.row1.Y,
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array1.row1.Z + array2.row1.Z,
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array1.row2.X + array2.row2.X,
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array1.row2.Y + array2.row2.Y,
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array1.row2.Z + array2.row2.Z,
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array1.row3.X + array2.row3.X,
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array1.row3.Y + array2.row3.Y,
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array1.row3.Z + array2.row3.Z
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);
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}
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public static Matrix3x3 operator -(Matrix3x3 array1, Matrix3x3 array2)
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{
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return new Matrix3x3(
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array1.row1.X - array2.row1.X,
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array1.row1.Y - array2.row1.Y,
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array1.row1.Z - array2.row1.Z,
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array1.row2.X - array2.row2.X,
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array1.row2.Y - array2.row2.Y,
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array1.row2.Z - array2.row2.Z,
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array1.row3.X - array2.row3.X,
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array1.row3.Y - array2.row3.Y,
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array1.row3.Z - array2.row3.Z
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);
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}
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public static unsafe Matrix3x3 operator *(Matrix3x3 array1,Matrix3x3 array2)
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{
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float* p1 = &array1.row1.X;
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float* p2 = &array2.row1.X;
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return new Matrix3x3(
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*(p1 + 0) * *(p2 + 0) + *(p1 + 1) * *(p2 + 3) + *(p1 + 2) * *(p2 + 6),
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*(p1 + 0) * *(p2 + 1) + *(p1 + 1) * *(p2 + 4) + *(p1 + 2) * *(p2 + 7),
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*(p1 + 0) * *(p2 + 2) + *(p1 + 1) * *(p2 + 5) + *(p1 + 2) * *(p2 + 8),
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*(p1 + 3) * *(p2 + 0) + *(p1 + 4) * *(p2 + 3) + *(p1 + 5) * *(p2 + 6),
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*(p1 + 3) * *(p2 + 1) + *(p1 + 4) * *(p2 + 4) + *(p1 + 5) * *(p2 + 7),
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*(p1 + 3) * *(p2 + 2) + *(p1 + 4) * *(p2 + 5) + *(p1 + 5) * *(p2 + 8),
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*(p1 + 6) * *(p2 + 0) + *(p1 + 7) * *(p2 + 3) + *(p1 + 2) * *(p2 + 6),
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*(p1 + 6) * *(p2 + 1) + *(p1 + 7) * *(p2 + 4) + *(p1 + 2) * *(p2 + 7),
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*(p1 + 6) * *(p2 + 2) + *(p1 + 7) * *(p2 + 5) + *(p1 + 2) * *(p2 + 8)
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);
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}
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public static Matrix3x3 operator *(Matrix3x3 array, float x)
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{
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return new Matrix3x3(
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array.row1 * x,
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array.row2 * x,
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array.row3 * x
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);
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}
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public static Matrix3x3 operator /(Matrix3x3 array, float x)
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{
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return new Matrix3x3(
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array.row1/x,
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array.row2/x,
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array.row3/x
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);
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}
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}
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}
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